Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Frequency Discrimination"”.
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Frequency-Discrimination Performance of Normal-Hearing and Hearing-Impaired Listeners
Frequency-discrimination data were obtained for 12 normal-hearing and six hearing-impaired subjects with a 3-interval, 2-cued, yes/no task for a variety of signals. These signals included pure tones, fixed-bandwidth (400 Hz) narrow-band noise and ratio-bandwidth (20%) narrow-band noise. Analyses …
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Auditory Frequency Discrimination After Transection of the Olivo-Cochlearbundle in Squirrel Monkeys
Made available in DSpace on 2014-12-08T23:01:36Z (GMT). No. of bitstreams: 1 6711829.pdf: 1866804 bytes, checksum: d6d8de29731fc1e81ffb5dcdb4b04b4c (MD5) Previous issue date: 1967
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Neurophysiological bases of frequency discrimination in children with Auditory Processing Disorder or Specific Language Impairment
… (SLI) could discriminate three different frequency changes behaviorally and electrophysiologically. Behavioral frequency discrimination and event-related potentials were examined using a 1000Hz pure tone base frequency. Typically developing children and children with APD or SLI differed in …
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Electrophysiological and behavioural measures of central auditory processing in adult cochlear implant users
… evoked potential measures, speech perception and frequency discrimination in 12 experienced adult cochlear implant (CI) users and to compare the evoked potential results in the CI subjects to those of a group of age- and gender-matched control subjects with normal hearing. The CI subjects all used …
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Microwave frequency discriminators using GaAs fet sloped amplifiers
… amplifier that is used for direct microwave frequency discrimination has been developed. Active type discriminators have several advantages over the passive interferometer type which has a limited accuracy. Their discrimination function is based on the utilization of a GaAs FET amplifier with …
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DEVELOPMENT AND EVALUATION OF ENVELOPE, SPECTRAL AND TIME ENHANCEMENT ALGORITHMS FOR AUDITORY NEUROPATHY
… speech perception. Traditional amplification and frequency shifting techniques used in modern hearing aids are not suitable to assist individuals with AN due to the unique symptoms that result from the disorder. This study proposes a method for combining both speech envelope enhancement and time …
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Development of Active Artificial Hair Cell Sensors
… allows the ear to detect faint sounds, improves frequency discrimination, and broadens the range of sound pressure levels that can be detected. In this work, active artificial hair cells (AHC) are proposed and developed which mimic the nonlinear cochlear amplifier. Active AHCs can be used to …
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Prosodic Boundary Effects on Syntactic Disambiguation in Children with Cochlear Implants, and in Normal Hearing Adults and Children
… tests of gap detection threshold and frequency limen were also investigated. Materials: The experiments were designed on E-Prime 2.0 software (Psychology Software Tools, Pittsburgh, PA). The sentences were recorded on Praat software (Boersma & Weenink, 2013), controlling for F0, …
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Robustness Enhancement of Sensory Transduction by Hair Bundles
… of hearing boasts exquisite sensitivity, precise frequency discrimination, and a broad dynamic range. Experiments and modeling imply, however, that the auditory system achieves this performance for only a narrow range of parameter values. Although the operation of some systems appears to require …
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Multi-channel ultra-low-power receiver architecture for body area networks
… ISM bands, it is important to employ multiple frequency channels to permit frequency-division-multiplexing and provide frequency diversity in the face of narrowband interferers. The high-Q nature of the resonators means that frequency tuning to other channels in the same band is nearly …
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Individual Differences in Pitch Perception
… to the direction of small but detectable frequency changes between sequential pure tones. Following previous research, an important feature of the stimuli used in Experiment 1 was that the standard frequency was varied randomly—or ‘roved’—over a wide range (400–2000.1 Hz) over trials. …
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THE INFLUENCE OF VISUAL TEXTURE ON THE VISUAL FACILITATION OF AUDITORY LOCALIZATION
… was conducted. In one experiment, auditory frequency discrimination was tested under three levels of illumination: light with texture, dark, and light without texture. No differences across illumination conditions were observed. The other eight experiments were designed to test for the …
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The auditory fingerprint : multidimensional characterization of individual pitch perception in musicians
… absolute pitch perception („perfect pitch“), (d) frequency discrimination threshold (just noticeable difference), and (e) auditory imagery of tone-sequences. Overall, eight psychoacoustic parameters were extracted and analyzed using statistical methods. In addition, preferences for musical …
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Effects of Hearing Experience, Music Training and Spectral-Temporal Processing on Music and Speech Perception in Adult Cochlear Implant Users
… CI users, exploring the mechanisms behind chord discrimination abilities and their relation to speech-in-noise perception. The first study, experiment 1 (chapter 2) used questionnaires to collect details of an individuals’ background characteristics for hearing experiences and music-listening …
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Forensic identification of six of Tanzanian populations using the extended haplotype markers
… the present study was to evaluate the power of discrimination and genetic (diversity) parameters in the Y chromosome extended haploytpe markers in populations of Tanzania for forensic and populations studies. Eleven Y chromosome extended haplotype markers were selected for this study, these …